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AJI92 USP24 N-Acetyl-L-Cysteine CAS No.616-91-1 White Powder Nutritional Supplement
Description
N-acetyl-L-cysteine, also known as N-acetylcysteine or Acetylcysteine (NAC), is a pharmaceutical drug and nutritional supplement used primarily as a mucolytic agent and in the management of paracetamol (acetaminophen) overdose.
N-acetyl-L-cysteine is a derivative of cysteine where an acetyl group is attached to the nitrogen atom. This compound is sold as a dietary supplement commonly claiming antioxidant and liver protecting effects. It is used as a cough medicine because it breaks disulfide bonds in mucus and liquefies it, making it easier to cough up. It is also this action of breaking disulfide bonds that makes it useful in thinning the abnormally thick mucus in cystic and pulmonary fibrosis patients.
Specification
| Appearance | White crystals or crystalline powder |
| Identification | Conforms |
| State Of Solution | ≥98.0% |
| Specific rotation | +21.3 to +27.0° |
| Chloride(CL) | ≤0.04% |
| Sulfate(SO4) | ≤0.030% |
| Ammonium(NH4) | ≤0.02% |
| Heavy metals(Pb) | ≤10ppm |
| Iron(Fe) | ≤20ppm |
| Arsenic(As2O3) | ≤1ppm |
| Other Amino Acids | Conforms |
| Loss On Drying | ≤0.5% |
| Residue On Ignition | ≤0.20% |
| Assay | 98.5% ~ 101.0% |
| pH | 2.0 ~ 2.8 |
